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Commit | Line | Data |
---|---|---|
07800601 | 1 | /* |
bf9e1876 IM |
2 | * builtin-top.c |
3 | * | |
4 | * Builtin top command: Display a continuously updated profile of | |
5 | * any workload, CPU or specific PID. | |
6 | * | |
7 | * Copyright (C) 2008, Red Hat Inc, Ingo Molnar <mingo@redhat.com> | |
ab81f3fd | 8 | * 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com> |
bf9e1876 IM |
9 | * |
10 | * Improvements and fixes by: | |
11 | * | |
12 | * Arjan van de Ven <arjan@linux.intel.com> | |
13 | * Yanmin Zhang <yanmin.zhang@intel.com> | |
14 | * Wu Fengguang <fengguang.wu@intel.com> | |
15 | * Mike Galbraith <efault@gmx.de> | |
16 | * Paul Mackerras <paulus@samba.org> | |
17 | * | |
18 | * Released under the GPL v2. (and only v2, not any later version) | |
07800601 | 19 | */ |
bf9e1876 | 20 | #include "builtin.h" |
07800601 | 21 | |
1a482f38 | 22 | #include "perf.h" |
bf9e1876 | 23 | |
36532461 | 24 | #include "util/annotate.h" |
c0443df1 | 25 | #include "util/cache.h" |
8fc0321f | 26 | #include "util/color.h" |
361c99a6 | 27 | #include "util/evlist.h" |
69aad6f1 | 28 | #include "util/evsel.h" |
b3165f41 ACM |
29 | #include "util/session.h" |
30 | #include "util/symbol.h" | |
439d473b | 31 | #include "util/thread.h" |
fd78260b | 32 | #include "util/thread_map.h" |
8c3e10eb | 33 | #include "util/top.h" |
148be2c1 | 34 | #include "util/util.h" |
43cbcd8a | 35 | #include <linux/rbtree.h> |
b456bae0 IM |
36 | #include "util/parse-options.h" |
37 | #include "util/parse-events.h" | |
a12b51c4 | 38 | #include "util/cpumap.h" |
69aad6f1 | 39 | #include "util/xyarray.h" |
ab81f3fd | 40 | #include "util/sort.h" |
07800601 | 41 | |
8f28827a FW |
42 | #include "util/debug.h" |
43 | ||
07800601 IM |
44 | #include <assert.h> |
45 | #include <fcntl.h> | |
0e9b20b8 | 46 | |
07800601 | 47 | #include <stdio.h> |
923c42c1 MG |
48 | #include <termios.h> |
49 | #include <unistd.h> | |
9486aa38 | 50 | #include <inttypes.h> |
0e9b20b8 | 51 | |
07800601 | 52 | #include <errno.h> |
07800601 IM |
53 | #include <time.h> |
54 | #include <sched.h> | |
07800601 IM |
55 | |
56 | #include <sys/syscall.h> | |
57 | #include <sys/ioctl.h> | |
58 | #include <sys/poll.h> | |
59 | #include <sys/prctl.h> | |
60 | #include <sys/wait.h> | |
61 | #include <sys/uio.h> | |
62 | #include <sys/mman.h> | |
63 | ||
64 | #include <linux/unistd.h> | |
65 | #include <linux/types.h> | |
66 | ||
923c42c1 | 67 | |
895f0edc | 68 | void get_term_dimensions(struct winsize *ws) |
3b6ed988 | 69 | { |
13cc5079 ACM |
70 | char *s = getenv("LINES"); |
71 | ||
72 | if (s != NULL) { | |
73 | ws->ws_row = atoi(s); | |
74 | s = getenv("COLUMNS"); | |
75 | if (s != NULL) { | |
76 | ws->ws_col = atoi(s); | |
77 | if (ws->ws_row && ws->ws_col) | |
78 | return; | |
79 | } | |
3b6ed988 | 80 | } |
13cc5079 ACM |
81 | #ifdef TIOCGWINSZ |
82 | if (ioctl(1, TIOCGWINSZ, ws) == 0 && | |
83 | ws->ws_row && ws->ws_col) | |
84 | return; | |
3b6ed988 | 85 | #endif |
13cc5079 ACM |
86 | ws->ws_row = 25; |
87 | ws->ws_col = 80; | |
3b6ed988 ACM |
88 | } |
89 | ||
1758af10 | 90 | static void perf_top__update_print_entries(struct perf_top *top) |
3b6ed988 | 91 | { |
1758af10 | 92 | top->print_entries = top->winsize.ws_row; |
13cc5079 | 93 | |
1758af10 ACM |
94 | if (top->print_entries > 9) |
95 | top->print_entries -= 9; | |
3b6ed988 ACM |
96 | } |
97 | ||
1758af10 | 98 | static void perf_top__sig_winch(int sig __used, siginfo_t *info __used, void *arg) |
3b6ed988 | 99 | { |
1758af10 ACM |
100 | struct perf_top *top = arg; |
101 | ||
102 | get_term_dimensions(&top->winsize); | |
103 | perf_top__update_print_entries(top); | |
3b6ed988 ACM |
104 | } |
105 | ||
1758af10 | 106 | static int perf_top__parse_source(struct perf_top *top, struct hist_entry *he) |
923c42c1 MG |
107 | { |
108 | struct symbol *sym; | |
ce6f4fab | 109 | struct annotation *notes; |
439d473b | 110 | struct map *map; |
36532461 | 111 | int err = -1; |
923c42c1 | 112 | |
ab81f3fd | 113 | if (!he || !he->ms.sym) |
b0a9ab62 ACM |
114 | return -1; |
115 | ||
ab81f3fd ACM |
116 | sym = he->ms.sym; |
117 | map = he->ms.map; | |
b0a9ab62 ACM |
118 | |
119 | /* | |
120 | * We can't annotate with just /proc/kallsyms | |
121 | */ | |
878b439d | 122 | if (map->dso->symtab_type == SYMTAB__KALLSYMS) { |
ce6f4fab ACM |
123 | pr_err("Can't annotate %s: No vmlinux file was found in the " |
124 | "path\n", sym->name); | |
125 | sleep(1); | |
b0a9ab62 | 126 | return -1; |
b269876c ACM |
127 | } |
128 | ||
ce6f4fab ACM |
129 | notes = symbol__annotation(sym); |
130 | if (notes->src != NULL) { | |
131 | pthread_mutex_lock(¬es->lock); | |
923c42c1 MG |
132 | goto out_assign; |
133 | } | |
923c42c1 | 134 | |
ce6f4fab | 135 | pthread_mutex_lock(¬es->lock); |
923c42c1 | 136 | |
d04b35f8 | 137 | if (symbol__alloc_hist(sym) < 0) { |
c97cf422 | 138 | pthread_mutex_unlock(¬es->lock); |
36532461 ACM |
139 | pr_err("Not enough memory for annotating '%s' symbol!\n", |
140 | sym->name); | |
ce6f4fab | 141 | sleep(1); |
c97cf422 | 142 | return err; |
923c42c1 | 143 | } |
36532461 | 144 | |
ab81f3fd | 145 | err = symbol__annotate(sym, map, 0); |
36532461 | 146 | if (err == 0) { |
923c42c1 | 147 | out_assign: |
1758af10 | 148 | top->sym_filter_entry = he; |
36532461 | 149 | } |
c97cf422 | 150 | |
ce6f4fab | 151 | pthread_mutex_unlock(¬es->lock); |
36532461 | 152 | return err; |
923c42c1 MG |
153 | } |
154 | ||
ab81f3fd | 155 | static void __zero_source_counters(struct hist_entry *he) |
923c42c1 | 156 | { |
ab81f3fd | 157 | struct symbol *sym = he->ms.sym; |
36532461 | 158 | symbol__annotate_zero_histograms(sym); |
923c42c1 MG |
159 | } |
160 | ||
1758af10 ACM |
161 | static void perf_top__record_precise_ip(struct perf_top *top, |
162 | struct hist_entry *he, | |
163 | int counter, u64 ip) | |
923c42c1 | 164 | { |
ce6f4fab ACM |
165 | struct annotation *notes; |
166 | struct symbol *sym; | |
167 | ||
ab81f3fd | 168 | if (he == NULL || he->ms.sym == NULL || |
1758af10 ACM |
169 | ((top->sym_filter_entry == NULL || |
170 | top->sym_filter_entry->ms.sym != he->ms.sym) && use_browser != 1)) | |
923c42c1 MG |
171 | return; |
172 | ||
ab81f3fd | 173 | sym = he->ms.sym; |
ce6f4fab ACM |
174 | notes = symbol__annotation(sym); |
175 | ||
176 | if (pthread_mutex_trylock(¬es->lock)) | |
923c42c1 MG |
177 | return; |
178 | ||
d04b35f8 | 179 | if (notes->src == NULL && symbol__alloc_hist(sym) < 0) { |
ab81f3fd ACM |
180 | pthread_mutex_unlock(¬es->lock); |
181 | pr_err("Not enough memory for annotating '%s' symbol!\n", | |
182 | sym->name); | |
183 | sleep(1); | |
184 | return; | |
185 | } | |
186 | ||
187 | ip = he->ms.map->map_ip(he->ms.map, ip); | |
188 | symbol__inc_addr_samples(sym, he->ms.map, counter, ip); | |
c7ad21af | 189 | |
ce6f4fab | 190 | pthread_mutex_unlock(¬es->lock); |
923c42c1 MG |
191 | } |
192 | ||
1758af10 | 193 | static void perf_top__show_details(struct perf_top *top) |
923c42c1 | 194 | { |
1758af10 | 195 | struct hist_entry *he = top->sym_filter_entry; |
ce6f4fab | 196 | struct annotation *notes; |
923c42c1 | 197 | struct symbol *symbol; |
36532461 | 198 | int more; |
923c42c1 | 199 | |
ab81f3fd | 200 | if (!he) |
923c42c1 MG |
201 | return; |
202 | ||
ab81f3fd | 203 | symbol = he->ms.sym; |
ce6f4fab ACM |
204 | notes = symbol__annotation(symbol); |
205 | ||
206 | pthread_mutex_lock(¬es->lock); | |
207 | ||
208 | if (notes->src == NULL) | |
209 | goto out_unlock; | |
923c42c1 | 210 | |
1758af10 ACM |
211 | printf("Showing %s for %s\n", event_name(top->sym_evsel), symbol->name); |
212 | printf(" Events Pcnt (>=%d%%)\n", top->sym_pcnt_filter); | |
923c42c1 | 213 | |
1758af10 ACM |
214 | more = symbol__annotate_printf(symbol, he->ms.map, top->sym_evsel->idx, |
215 | 0, top->sym_pcnt_filter, top->print_entries, 4); | |
216 | if (top->zero) | |
217 | symbol__annotate_zero_histogram(symbol, top->sym_evsel->idx); | |
36532461 | 218 | else |
1758af10 | 219 | symbol__annotate_decay_histogram(symbol, top->sym_evsel->idx); |
36532461 | 220 | if (more != 0) |
923c42c1 | 221 | printf("%d lines not displayed, maybe increase display entries [e]\n", more); |
ce6f4fab ACM |
222 | out_unlock: |
223 | pthread_mutex_unlock(¬es->lock); | |
923c42c1 | 224 | } |
07800601 | 225 | |
07800601 IM |
226 | static const char CONSOLE_CLEAR[] = "\e[H\e[2J"; |
227 | ||
743eb868 ACM |
228 | static struct hist_entry *perf_evsel__add_hist_entry(struct perf_evsel *evsel, |
229 | struct addr_location *al, | |
230 | struct perf_sample *sample) | |
de04687f | 231 | { |
ab81f3fd ACM |
232 | struct hist_entry *he; |
233 | ||
234 | he = __hists__add_entry(&evsel->hists, al, NULL, sample->period); | |
235 | if (he == NULL) | |
236 | return NULL; | |
237 | ||
743eb868 | 238 | evsel->hists.stats.total_period += sample->period; |
ab81f3fd ACM |
239 | hists__inc_nr_events(&evsel->hists, PERF_RECORD_SAMPLE); |
240 | return he; | |
de04687f | 241 | } |
07800601 | 242 | |
1758af10 | 243 | static void perf_top__print_sym_table(struct perf_top *top) |
07800601 | 244 | { |
8c3e10eb ACM |
245 | char bf[160]; |
246 | int printed = 0; | |
1758af10 | 247 | const int win_width = top->winsize.ws_col - 1; |
d94b9430 | 248 | |
0f5486b5 | 249 | puts(CONSOLE_CLEAR); |
07800601 | 250 | |
1758af10 | 251 | perf_top__header_snprintf(top, bf, sizeof(bf)); |
8c3e10eb | 252 | printf("%s\n", bf); |
07800601 | 253 | |
1758af10 | 254 | perf_top__reset_sample_counters(top); |
07800601 | 255 | |
1a105f74 | 256 | printf("%-*.*s\n", win_width, win_width, graph_dotted_line); |
07800601 | 257 | |
1758af10 ACM |
258 | if (top->sym_evsel->hists.stats.nr_lost_warned != |
259 | top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]) { | |
260 | top->sym_evsel->hists.stats.nr_lost_warned = | |
261 | top->sym_evsel->hists.stats.nr_events[PERF_RECORD_LOST]; | |
7b27509f ACM |
262 | color_fprintf(stdout, PERF_COLOR_RED, |
263 | "WARNING: LOST %d chunks, Check IO/CPU overload", | |
1758af10 | 264 | top->sym_evsel->hists.stats.nr_lost_warned); |
ab81f3fd | 265 | ++printed; |
93fc64f1 ACM |
266 | } |
267 | ||
1758af10 ACM |
268 | if (top->sym_filter_entry) { |
269 | perf_top__show_details(top); | |
923c42c1 MG |
270 | return; |
271 | } | |
272 | ||
1758af10 ACM |
273 | hists__collapse_resort_threaded(&top->sym_evsel->hists); |
274 | hists__output_resort_threaded(&top->sym_evsel->hists); | |
275 | hists__decay_entries_threaded(&top->sym_evsel->hists, | |
276 | top->hide_user_symbols, | |
277 | top->hide_kernel_symbols); | |
278 | hists__output_recalc_col_len(&top->sym_evsel->hists, | |
279 | top->winsize.ws_row - 3); | |
7cc017ed | 280 | putchar('\n'); |
1758af10 ACM |
281 | hists__fprintf(&top->sym_evsel->hists, NULL, false, false, |
282 | top->winsize.ws_row - 4 - printed, win_width, stdout); | |
07800601 IM |
283 | } |
284 | ||
923c42c1 MG |
285 | static void prompt_integer(int *target, const char *msg) |
286 | { | |
287 | char *buf = malloc(0), *p; | |
288 | size_t dummy = 0; | |
289 | int tmp; | |
290 | ||
291 | fprintf(stdout, "\n%s: ", msg); | |
292 | if (getline(&buf, &dummy, stdin) < 0) | |
293 | return; | |
294 | ||
295 | p = strchr(buf, '\n'); | |
296 | if (p) | |
297 | *p = 0; | |
298 | ||
299 | p = buf; | |
300 | while(*p) { | |
301 | if (!isdigit(*p)) | |
302 | goto out_free; | |
303 | p++; | |
304 | } | |
305 | tmp = strtoul(buf, NULL, 10); | |
306 | *target = tmp; | |
307 | out_free: | |
308 | free(buf); | |
309 | } | |
310 | ||
311 | static void prompt_percent(int *target, const char *msg) | |
312 | { | |
313 | int tmp = 0; | |
314 | ||
315 | prompt_integer(&tmp, msg); | |
316 | if (tmp >= 0 && tmp <= 100) | |
317 | *target = tmp; | |
318 | } | |
319 | ||
1758af10 | 320 | static void perf_top__prompt_symbol(struct perf_top *top, const char *msg) |
923c42c1 MG |
321 | { |
322 | char *buf = malloc(0), *p; | |
1758af10 | 323 | struct hist_entry *syme = top->sym_filter_entry, *n, *found = NULL; |
ab81f3fd | 324 | struct rb_node *next; |
923c42c1 MG |
325 | size_t dummy = 0; |
326 | ||
327 | /* zero counters of active symbol */ | |
328 | if (syme) { | |
923c42c1 | 329 | __zero_source_counters(syme); |
1758af10 | 330 | top->sym_filter_entry = NULL; |
923c42c1 MG |
331 | } |
332 | ||
333 | fprintf(stdout, "\n%s: ", msg); | |
334 | if (getline(&buf, &dummy, stdin) < 0) | |
335 | goto out_free; | |
336 | ||
337 | p = strchr(buf, '\n'); | |
338 | if (p) | |
339 | *p = 0; | |
340 | ||
1758af10 | 341 | next = rb_first(&top->sym_evsel->hists.entries); |
ab81f3fd ACM |
342 | while (next) { |
343 | n = rb_entry(next, struct hist_entry, rb_node); | |
344 | if (n->ms.sym && !strcmp(buf, n->ms.sym->name)) { | |
345 | found = n; | |
923c42c1 MG |
346 | break; |
347 | } | |
ab81f3fd | 348 | next = rb_next(&n->rb_node); |
923c42c1 MG |
349 | } |
350 | ||
351 | if (!found) { | |
66aeb6d5 | 352 | fprintf(stderr, "Sorry, %s is not active.\n", buf); |
923c42c1 MG |
353 | sleep(1); |
354 | return; | |
355 | } else | |
1758af10 | 356 | perf_top__parse_source(top, found); |
923c42c1 MG |
357 | |
358 | out_free: | |
359 | free(buf); | |
360 | } | |
361 | ||
1758af10 | 362 | static void perf_top__print_mapped_keys(struct perf_top *top) |
923c42c1 | 363 | { |
091bd2e9 MG |
364 | char *name = NULL; |
365 | ||
1758af10 ACM |
366 | if (top->sym_filter_entry) { |
367 | struct symbol *sym = top->sym_filter_entry->ms.sym; | |
091bd2e9 MG |
368 | name = sym->name; |
369 | } | |
370 | ||
371 | fprintf(stdout, "\nMapped keys:\n"); | |
1758af10 ACM |
372 | fprintf(stdout, "\t[d] display refresh delay. \t(%d)\n", top->delay_secs); |
373 | fprintf(stdout, "\t[e] display entries (lines). \t(%d)\n", top->print_entries); | |
091bd2e9 | 374 | |
1758af10 ACM |
375 | if (top->evlist->nr_entries > 1) |
376 | fprintf(stdout, "\t[E] active event counter. \t(%s)\n", event_name(top->sym_evsel)); | |
091bd2e9 | 377 | |
1758af10 | 378 | fprintf(stdout, "\t[f] profile display filter (count). \t(%d)\n", top->count_filter); |
091bd2e9 | 379 | |
1758af10 | 380 | fprintf(stdout, "\t[F] annotate display filter (percent). \t(%d%%)\n", top->sym_pcnt_filter); |
6cff0e8d KS |
381 | fprintf(stdout, "\t[s] annotate symbol. \t(%s)\n", name?: "NULL"); |
382 | fprintf(stdout, "\t[S] stop annotation.\n"); | |
091bd2e9 | 383 | |
8ffcda17 | 384 | fprintf(stdout, |
1a72cfa6 | 385 | "\t[K] hide kernel_symbols symbols. \t(%s)\n", |
1758af10 | 386 | top->hide_kernel_symbols ? "yes" : "no"); |
8ffcda17 ACM |
387 | fprintf(stdout, |
388 | "\t[U] hide user symbols. \t(%s)\n", | |
1758af10 ACM |
389 | top->hide_user_symbols ? "yes" : "no"); |
390 | fprintf(stdout, "\t[z] toggle sample zeroing. \t(%d)\n", top->zero ? 1 : 0); | |
091bd2e9 MG |
391 | fprintf(stdout, "\t[qQ] quit.\n"); |
392 | } | |
393 | ||
1758af10 | 394 | static int perf_top__key_mapped(struct perf_top *top, int c) |
091bd2e9 MG |
395 | { |
396 | switch (c) { | |
397 | case 'd': | |
398 | case 'e': | |
399 | case 'f': | |
400 | case 'z': | |
401 | case 'q': | |
402 | case 'Q': | |
8ffcda17 ACM |
403 | case 'K': |
404 | case 'U': | |
6cff0e8d KS |
405 | case 'F': |
406 | case 's': | |
407 | case 'S': | |
091bd2e9 MG |
408 | return 1; |
409 | case 'E': | |
1758af10 | 410 | return top->evlist->nr_entries > 1 ? 1 : 0; |
83a0944f IM |
411 | default: |
412 | break; | |
091bd2e9 MG |
413 | } |
414 | ||
415 | return 0; | |
923c42c1 MG |
416 | } |
417 | ||
1758af10 | 418 | static void perf_top__handle_keypress(struct perf_top *top, int c) |
923c42c1 | 419 | { |
1758af10 | 420 | if (!perf_top__key_mapped(top, c)) { |
091bd2e9 MG |
421 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
422 | struct termios tc, save; | |
423 | ||
1758af10 | 424 | perf_top__print_mapped_keys(top); |
091bd2e9 MG |
425 | fprintf(stdout, "\nEnter selection, or unmapped key to continue: "); |
426 | fflush(stdout); | |
427 | ||
428 | tcgetattr(0, &save); | |
429 | tc = save; | |
430 | tc.c_lflag &= ~(ICANON | ECHO); | |
431 | tc.c_cc[VMIN] = 0; | |
432 | tc.c_cc[VTIME] = 0; | |
433 | tcsetattr(0, TCSANOW, &tc); | |
434 | ||
435 | poll(&stdin_poll, 1, -1); | |
436 | c = getc(stdin); | |
437 | ||
438 | tcsetattr(0, TCSAFLUSH, &save); | |
1758af10 | 439 | if (!perf_top__key_mapped(top, c)) |
091bd2e9 MG |
440 | return; |
441 | } | |
442 | ||
923c42c1 MG |
443 | switch (c) { |
444 | case 'd': | |
1758af10 ACM |
445 | prompt_integer(&top->delay_secs, "Enter display delay"); |
446 | if (top->delay_secs < 1) | |
447 | top->delay_secs = 1; | |
923c42c1 MG |
448 | break; |
449 | case 'e': | |
1758af10 ACM |
450 | prompt_integer(&top->print_entries, "Enter display entries (lines)"); |
451 | if (top->print_entries == 0) { | |
452 | struct sigaction act = { | |
453 | .sa_sigaction = perf_top__sig_winch, | |
454 | .sa_flags = SA_SIGINFO, | |
455 | }; | |
456 | perf_top__sig_winch(SIGWINCH, NULL, top); | |
457 | sigaction(SIGWINCH, &act, NULL); | |
3b6ed988 ACM |
458 | } else |
459 | signal(SIGWINCH, SIG_DFL); | |
923c42c1 MG |
460 | break; |
461 | case 'E': | |
1758af10 | 462 | if (top->evlist->nr_entries > 1) { |
ce2d17ca AN |
463 | /* Select 0 as the default event: */ |
464 | int counter = 0; | |
465 | ||
923c42c1 | 466 | fprintf(stderr, "\nAvailable events:"); |
69aad6f1 | 467 | |
1758af10 ACM |
468 | list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) |
469 | fprintf(stderr, "\n\t%d %s", top->sym_evsel->idx, event_name(top->sym_evsel)); | |
923c42c1 | 470 | |
ec52d976 | 471 | prompt_integer(&counter, "Enter details event counter"); |
923c42c1 | 472 | |
1758af10 ACM |
473 | if (counter >= top->evlist->nr_entries) { |
474 | top->sym_evsel = list_entry(top->evlist->entries.next, struct perf_evsel, node); | |
475 | fprintf(stderr, "Sorry, no such event, using %s.\n", event_name(top->sym_evsel)); | |
923c42c1 | 476 | sleep(1); |
69aad6f1 | 477 | break; |
923c42c1 | 478 | } |
1758af10 ACM |
479 | list_for_each_entry(top->sym_evsel, &top->evlist->entries, node) |
480 | if (top->sym_evsel->idx == counter) | |
69aad6f1 | 481 | break; |
ec52d976 | 482 | } else |
1758af10 | 483 | top->sym_evsel = list_entry(top->evlist->entries.next, struct perf_evsel, node); |
923c42c1 MG |
484 | break; |
485 | case 'f': | |
1758af10 | 486 | prompt_integer(&top->count_filter, "Enter display event count filter"); |
923c42c1 MG |
487 | break; |
488 | case 'F': | |
1758af10 ACM |
489 | prompt_percent(&top->sym_pcnt_filter, |
490 | "Enter details display event filter (percent)"); | |
923c42c1 | 491 | break; |
8ffcda17 | 492 | case 'K': |
1758af10 | 493 | top->hide_kernel_symbols = !top->hide_kernel_symbols; |
8ffcda17 | 494 | break; |
923c42c1 MG |
495 | case 'q': |
496 | case 'Q': | |
497 | printf("exiting.\n"); | |
1758af10 ACM |
498 | if (top->dump_symtab) |
499 | perf_session__fprintf_dsos(top->session, stderr); | |
923c42c1 MG |
500 | exit(0); |
501 | case 's': | |
1758af10 | 502 | perf_top__prompt_symbol(top, "Enter details symbol"); |
923c42c1 MG |
503 | break; |
504 | case 'S': | |
1758af10 | 505 | if (!top->sym_filter_entry) |
923c42c1 MG |
506 | break; |
507 | else { | |
1758af10 | 508 | struct hist_entry *syme = top->sym_filter_entry; |
923c42c1 | 509 | |
1758af10 | 510 | top->sym_filter_entry = NULL; |
923c42c1 | 511 | __zero_source_counters(syme); |
923c42c1 MG |
512 | } |
513 | break; | |
8ffcda17 | 514 | case 'U': |
1758af10 | 515 | top->hide_user_symbols = !top->hide_user_symbols; |
8ffcda17 | 516 | break; |
923c42c1 | 517 | case 'z': |
1758af10 | 518 | top->zero = !top->zero; |
923c42c1 | 519 | break; |
83a0944f IM |
520 | default: |
521 | break; | |
923c42c1 MG |
522 | } |
523 | } | |
524 | ||
ab81f3fd ACM |
525 | static void perf_top__sort_new_samples(void *arg) |
526 | { | |
527 | struct perf_top *t = arg; | |
528 | perf_top__reset_sample_counters(t); | |
529 | ||
530 | if (t->evlist->selected != NULL) | |
531 | t->sym_evsel = t->evlist->selected; | |
532 | ||
533 | hists__collapse_resort_threaded(&t->sym_evsel->hists); | |
534 | hists__output_resort_threaded(&t->sym_evsel->hists); | |
b079d4e9 | 535 | hists__decay_entries_threaded(&t->sym_evsel->hists, |
1758af10 ACM |
536 | t->hide_user_symbols, |
537 | t->hide_kernel_symbols); | |
ab81f3fd ACM |
538 | } |
539 | ||
1758af10 | 540 | static void *display_thread_tui(void *arg) |
c0443df1 | 541 | { |
1758af10 | 542 | struct perf_top *top = arg; |
ab81f3fd ACM |
543 | const char *help = "For a higher level overview, try: perf top --sort comm,dso"; |
544 | ||
1758af10 ACM |
545 | perf_top__sort_new_samples(top); |
546 | perf_evlist__tui_browse_hists(top->evlist, help, | |
ab81f3fd | 547 | perf_top__sort_new_samples, |
1758af10 | 548 | top, top->delay_secs); |
ab81f3fd | 549 | |
c0443df1 ACM |
550 | exit_browser(0); |
551 | exit(0); | |
552 | return NULL; | |
553 | } | |
554 | ||
1758af10 | 555 | static void *display_thread(void *arg) |
07800601 | 556 | { |
0f5486b5 | 557 | struct pollfd stdin_poll = { .fd = 0, .events = POLLIN }; |
923c42c1 | 558 | struct termios tc, save; |
1758af10 | 559 | struct perf_top *top = arg; |
923c42c1 MG |
560 | int delay_msecs, c; |
561 | ||
562 | tcgetattr(0, &save); | |
563 | tc = save; | |
564 | tc.c_lflag &= ~(ICANON | ECHO); | |
565 | tc.c_cc[VMIN] = 0; | |
566 | tc.c_cc[VTIME] = 0; | |
091bd2e9 | 567 | |
3af6e338 | 568 | pthread__unblock_sigwinch(); |
923c42c1 | 569 | repeat: |
1758af10 | 570 | delay_msecs = top->delay_secs * 1000; |
923c42c1 MG |
571 | tcsetattr(0, TCSANOW, &tc); |
572 | /* trash return*/ | |
573 | getc(stdin); | |
07800601 | 574 | |
3af6e338 | 575 | while (1) { |
1758af10 | 576 | perf_top__print_sym_table(top); |
3af6e338 ACM |
577 | /* |
578 | * Either timeout expired or we got an EINTR due to SIGWINCH, | |
579 | * refresh screen in both cases. | |
580 | */ | |
581 | switch (poll(&stdin_poll, 1, delay_msecs)) { | |
582 | case 0: | |
583 | continue; | |
584 | case -1: | |
585 | if (errno == EINTR) | |
586 | continue; | |
587 | /* Fall trhu */ | |
588 | default: | |
589 | goto process_hotkey; | |
590 | } | |
591 | } | |
592 | process_hotkey: | |
923c42c1 MG |
593 | c = getc(stdin); |
594 | tcsetattr(0, TCSAFLUSH, &save); | |
595 | ||
1758af10 | 596 | perf_top__handle_keypress(top, c); |
923c42c1 | 597 | goto repeat; |
07800601 IM |
598 | |
599 | return NULL; | |
600 | } | |
601 | ||
2ab52083 | 602 | /* Tag samples to be skipped. */ |
f37a291c | 603 | static const char *skip_symbols[] = { |
2ab52083 | 604 | "default_idle", |
b0e8572f | 605 | "native_safe_halt", |
2ab52083 AB |
606 | "cpu_idle", |
607 | "enter_idle", | |
608 | "exit_idle", | |
609 | "mwait_idle", | |
59b90056 | 610 | "mwait_idle_with_hints", |
8357275b | 611 | "poll_idle", |
3a3393ef AB |
612 | "ppc64_runlatch_off", |
613 | "pseries_dedicated_idle_sleep", | |
2ab52083 AB |
614 | NULL |
615 | }; | |
616 | ||
ab81f3fd | 617 | static int symbol_filter(struct map *map __used, struct symbol *sym) |
07800601 | 618 | { |
de04687f | 619 | const char *name = sym->name; |
2ab52083 | 620 | int i; |
de04687f | 621 | |
3a3393ef AB |
622 | /* |
623 | * ppc64 uses function descriptors and appends a '.' to the | |
624 | * start of every instruction address. Remove it. | |
625 | */ | |
626 | if (name[0] == '.') | |
627 | name++; | |
628 | ||
de04687f ACM |
629 | if (!strcmp(name, "_text") || |
630 | !strcmp(name, "_etext") || | |
631 | !strcmp(name, "_sinittext") || | |
632 | !strncmp("init_module", name, 11) || | |
633 | !strncmp("cleanup_module", name, 14) || | |
634 | strstr(name, "_text_start") || | |
635 | strstr(name, "_text_end")) | |
07800601 | 636 | return 1; |
07800601 | 637 | |
2ab52083 AB |
638 | for (i = 0; skip_symbols[i]; i++) { |
639 | if (!strcmp(skip_symbols[i], name)) { | |
171b3be9 | 640 | sym->ignore = true; |
2ab52083 AB |
641 | break; |
642 | } | |
643 | } | |
07800601 | 644 | |
07800601 IM |
645 | return 0; |
646 | } | |
647 | ||
1758af10 ACM |
648 | static void perf_event__process_sample(struct perf_tool *tool, |
649 | const union perf_event *event, | |
7b27509f | 650 | struct perf_evsel *evsel, |
8115d60c | 651 | struct perf_sample *sample, |
743eb868 | 652 | struct machine *machine) |
07800601 | 653 | { |
1758af10 | 654 | struct perf_top *top = container_of(tool, struct perf_top, tool); |
19d4ac3c | 655 | struct symbol *parent = NULL; |
8115d60c | 656 | u64 ip = event->ip.ip; |
1ed091c4 | 657 | struct addr_location al; |
19d4ac3c | 658 | int err; |
5b2bb75a | 659 | |
23346f21 | 660 | if (!machine && perf_guest) { |
a1645ce1 | 661 | pr_err("Can't find guest [%d]'s kernel information\n", |
8115d60c | 662 | event->ip.pid); |
a1645ce1 ZY |
663 | return; |
664 | } | |
665 | ||
8115d60c | 666 | if (event->header.misc & PERF_RECORD_MISC_EXACT_IP) |
1758af10 | 667 | top->exact_samples++; |
1676b8a0 | 668 | |
743eb868 | 669 | if (perf_event__preprocess_sample(event, machine, &al, sample, |
8115d60c | 670 | symbol_filter) < 0 || |
72b8fa17 | 671 | al.filtered) |
1ed091c4 | 672 | return; |
07800601 | 673 | |
1758af10 | 674 | if (!top->kptr_restrict_warned && |
5f6f5580 ACM |
675 | symbol_conf.kptr_restrict && |
676 | al.cpumode == PERF_RECORD_MISC_KERNEL) { | |
677 | ui__warning( | |
678 | "Kernel address maps (/proc/{kallsyms,modules}) are restricted.\n\n" | |
679 | "Check /proc/sys/kernel/kptr_restrict.\n\n" | |
680 | "Kernel%s samples will not be resolved.\n", | |
681 | !RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION]) ? | |
682 | " modules" : ""); | |
683 | if (use_browser <= 0) | |
684 | sleep(5); | |
1758af10 | 685 | top->kptr_restrict_warned = true; |
5f6f5580 ACM |
686 | } |
687 | ||
72b8fa17 | 688 | if (al.sym == NULL) { |
e4a338d0 | 689 | const char *msg = "Kernel samples will not be resolved.\n"; |
72b8fa17 ACM |
690 | /* |
691 | * As we do lazy loading of symtabs we only will know if the | |
692 | * specified vmlinux file is invalid when we actually have a | |
693 | * hit in kernel space and then try to load it. So if we get | |
694 | * here and there are _no_ symbols in the DSO backing the | |
695 | * kernel map, bail out. | |
696 | * | |
697 | * We may never get here, for instance, if we use -K/ | |
698 | * --hide-kernel-symbols, even if the user specifies an | |
699 | * invalid --vmlinux ;-) | |
700 | */ | |
1758af10 | 701 | if (!top->kptr_restrict_warned && !top->vmlinux_warned && |
e4a338d0 | 702 | al.map == machine->vmlinux_maps[MAP__FUNCTION] && |
72b8fa17 | 703 | RB_EMPTY_ROOT(&al.map->dso->symbols[MAP__FUNCTION])) { |
e4a338d0 ACM |
704 | if (symbol_conf.vmlinux_name) { |
705 | ui__warning("The %s file can't be used.\n%s", | |
706 | symbol_conf.vmlinux_name, msg); | |
707 | } else { | |
708 | ui__warning("A vmlinux file was not found.\n%s", | |
709 | msg); | |
710 | } | |
711 | ||
712 | if (use_browser <= 0) | |
713 | sleep(5); | |
1758af10 | 714 | top->vmlinux_warned = true; |
72b8fa17 | 715 | } |
6cff0e8d KS |
716 | } |
717 | ||
ab81f3fd | 718 | if (al.sym == NULL || !al.sym->ignore) { |
ab81f3fd | 719 | struct hist_entry *he; |
70db7533 | 720 | |
19d4ac3c ACM |
721 | if ((sort__has_parent || symbol_conf.use_callchain) && |
722 | sample->callchain) { | |
743eb868 ACM |
723 | err = machine__resolve_callchain(machine, evsel, al.thread, |
724 | sample->callchain, &parent); | |
19d4ac3c ACM |
725 | if (err) |
726 | return; | |
727 | } | |
728 | ||
743eb868 | 729 | he = perf_evsel__add_hist_entry(evsel, &al, sample); |
ab81f3fd ACM |
730 | if (he == NULL) { |
731 | pr_err("Problem incrementing symbol period, skipping event\n"); | |
732 | return; | |
5807806a | 733 | } |
ab81f3fd | 734 | |
19d4ac3c | 735 | if (symbol_conf.use_callchain) { |
246d4ce8 | 736 | err = callchain_append(he->callchain, &evsel->hists.callchain_cursor, |
19d4ac3c ACM |
737 | sample->period); |
738 | if (err) | |
739 | return; | |
740 | } | |
741 | ||
1758af10 ACM |
742 | if (top->sort_has_symbols) |
743 | perf_top__record_precise_ip(top, he, evsel->idx, ip); | |
5b2bb75a | 744 | } |
ab81f3fd ACM |
745 | |
746 | return; | |
07800601 IM |
747 | } |
748 | ||
1758af10 | 749 | static void perf_top__mmap_read_idx(struct perf_top *top, int idx) |
07800601 | 750 | { |
8d50e5b4 | 751 | struct perf_sample sample; |
7b27509f | 752 | struct perf_evsel *evsel; |
1758af10 | 753 | struct perf_session *session = top->session; |
8115d60c | 754 | union perf_event *event; |
743eb868 ACM |
755 | struct machine *machine; |
756 | u8 origin; | |
5538beca | 757 | int ret; |
07800601 | 758 | |
1758af10 ACM |
759 | while ((event = perf_evlist__mmap_read(top->evlist, idx)) != NULL) { |
760 | ret = perf_session__parse_sample(session, event, &sample); | |
5538beca FW |
761 | if (ret) { |
762 | pr_err("Can't parse sample, err = %d\n", ret); | |
763 | continue; | |
764 | } | |
04391deb | 765 | |
1758af10 | 766 | evsel = perf_evlist__id2evsel(session->evlist, sample.id); |
7b27509f ACM |
767 | assert(evsel != NULL); |
768 | ||
743eb868 ACM |
769 | origin = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK; |
770 | ||
5b2bb75a | 771 | if (event->header.type == PERF_RECORD_SAMPLE) |
1758af10 | 772 | ++top->samples; |
743eb868 ACM |
773 | |
774 | switch (origin) { | |
775 | case PERF_RECORD_MISC_USER: | |
1758af10 ACM |
776 | ++top->us_samples; |
777 | if (top->hide_user_symbols) | |
743eb868 | 778 | continue; |
1758af10 | 779 | machine = perf_session__find_host_machine(session); |
743eb868 ACM |
780 | break; |
781 | case PERF_RECORD_MISC_KERNEL: | |
1758af10 ACM |
782 | ++top->kernel_samples; |
783 | if (top->hide_kernel_symbols) | |
743eb868 | 784 | continue; |
1758af10 | 785 | machine = perf_session__find_host_machine(session); |
743eb868 ACM |
786 | break; |
787 | case PERF_RECORD_MISC_GUEST_KERNEL: | |
1758af10 ACM |
788 | ++top->guest_kernel_samples; |
789 | machine = perf_session__find_machine(session, event->ip.pid); | |
743eb868 ACM |
790 | break; |
791 | case PERF_RECORD_MISC_GUEST_USER: | |
1758af10 | 792 | ++top->guest_us_samples; |
743eb868 ACM |
793 | /* |
794 | * TODO: we don't process guest user from host side | |
795 | * except simple counting. | |
796 | */ | |
797 | /* Fall thru */ | |
798 | default: | |
799 | continue; | |
800 | } | |
801 | ||
802 | ||
1758af10 ACM |
803 | if (event->header.type == PERF_RECORD_SAMPLE) { |
804 | perf_event__process_sample(&top->tool, event, evsel, | |
805 | &sample, machine); | |
806 | } else if (event->header.type < PERF_RECORD_MAX) { | |
7b27509f | 807 | hists__inc_nr_events(&evsel->hists, event->header.type); |
1758af10 | 808 | perf_event__process(&top->tool, event, &sample, machine); |
7b27509f | 809 | } else |
1758af10 | 810 | ++session->hists.stats.nr_unknown_events; |
07800601 | 811 | } |
07800601 IM |
812 | } |
813 | ||
1758af10 | 814 | static void perf_top__mmap_read(struct perf_top *top) |
2f01190a | 815 | { |
70db7533 ACM |
816 | int i; |
817 | ||
1758af10 ACM |
818 | for (i = 0; i < top->evlist->nr_mmaps; i++) |
819 | perf_top__mmap_read_idx(top, i); | |
2f01190a FW |
820 | } |
821 | ||
1758af10 | 822 | static void perf_top__start_counters(struct perf_top *top) |
72cb7013 | 823 | { |
727ab04e | 824 | struct perf_evsel *counter, *first; |
1758af10 | 825 | struct perf_evlist *evlist = top->evlist; |
727ab04e ACM |
826 | |
827 | first = list_entry(evlist->entries.next, struct perf_evsel, node); | |
7e4ff9e3 | 828 | |
72cb7013 ACM |
829 | list_for_each_entry(counter, &evlist->entries, node) { |
830 | struct perf_event_attr *attr = &counter->attr; | |
727ab04e ACM |
831 | struct xyarray *group_fd = NULL; |
832 | ||
1758af10 | 833 | if (top->group && counter != first) |
727ab04e | 834 | group_fd = first->fd; |
716c69fe | 835 | |
72cb7013 ACM |
836 | attr->sample_type = PERF_SAMPLE_IP | PERF_SAMPLE_TID; |
837 | ||
1758af10 | 838 | if (top->freq) { |
72cb7013 ACM |
839 | attr->sample_type |= PERF_SAMPLE_PERIOD; |
840 | attr->freq = 1; | |
1758af10 | 841 | attr->sample_freq = top->freq; |
72cb7013 | 842 | } |
d6d901c2 | 843 | |
70db7533 ACM |
844 | if (evlist->nr_entries > 1) { |
845 | attr->sample_type |= PERF_SAMPLE_ID; | |
846 | attr->read_format |= PERF_FORMAT_ID; | |
847 | } | |
848 | ||
19d4ac3c ACM |
849 | if (symbol_conf.use_callchain) |
850 | attr->sample_type |= PERF_SAMPLE_CALLCHAIN; | |
851 | ||
72cb7013 | 852 | attr->mmap = 1; |
ab81f3fd | 853 | attr->comm = 1; |
1758af10 | 854 | attr->inherit = top->inherit; |
7b27509f | 855 | retry_sample_id: |
1758af10 | 856 | attr->sample_id_all = top->sample_id_all_avail ? 1 : 0; |
72cb7013 | 857 | try_again: |
1758af10 ACM |
858 | if (perf_evsel__open(counter, top->evlist->cpus, |
859 | top->evlist->threads, top->group, | |
727ab04e | 860 | group_fd) < 0) { |
d6d901c2 ZY |
861 | int err = errno; |
862 | ||
c286c419 | 863 | if (err == EPERM || err == EACCES) { |
b8631e6e | 864 | ui__error_paranoid(); |
c286c419 | 865 | goto out_err; |
1758af10 | 866 | } else if (err == EINVAL && top->sample_id_all_avail) { |
7b27509f ACM |
867 | /* |
868 | * Old kernel, no attr->sample_id_type_all field | |
869 | */ | |
1758af10 | 870 | top->sample_id_all_avail = false; |
7b27509f | 871 | goto retry_sample_id; |
c286c419 | 872 | } |
d6d901c2 ZY |
873 | /* |
874 | * If it's cycles then fall back to hrtimer | |
875 | * based cpu-clock-tick sw counter, which | |
876 | * is always available even if no PMU support: | |
877 | */ | |
72cb7013 ACM |
878 | if (attr->type == PERF_TYPE_HARDWARE && |
879 | attr->config == PERF_COUNT_HW_CPU_CYCLES) { | |
d6d901c2 | 880 | if (verbose) |
c286c419 ACM |
881 | ui__warning("Cycles event not supported,\n" |
882 | "trying to fall back to cpu-clock-ticks\n"); | |
d6d901c2 ZY |
883 | |
884 | attr->type = PERF_TYPE_SOFTWARE; | |
885 | attr->config = PERF_COUNT_SW_CPU_CLOCK; | |
886 | goto try_again; | |
887 | } | |
c286c419 | 888 | |
ca6a4258 DA |
889 | if (err == ENOENT) { |
890 | ui__warning("The %s event is not supported.\n", | |
891 | event_name(counter)); | |
892 | goto out_err; | |
893 | } | |
894 | ||
c286c419 ACM |
895 | ui__warning("The sys_perf_event_open() syscall " |
896 | "returned with %d (%s). /bin/dmesg " | |
897 | "may provide additional information.\n" | |
898 | "No CONFIG_PERF_EVENTS=y kernel support " | |
899 | "configured?\n", err, strerror(err)); | |
900 | goto out_err; | |
d6d901c2 | 901 | } |
716c69fe | 902 | } |
70db7533 | 903 | |
1758af10 | 904 | if (perf_evlist__mmap(evlist, top->mmap_pages, false) < 0) { |
c286c419 ACM |
905 | ui__warning("Failed to mmap with %d (%s)\n", |
906 | errno, strerror(errno)); | |
907 | goto out_err; | |
908 | } | |
909 | ||
910 | return; | |
911 | ||
912 | out_err: | |
913 | exit_browser(0); | |
914 | exit(0); | |
716c69fe IM |
915 | } |
916 | ||
1758af10 | 917 | static int perf_top__setup_sample_type(struct perf_top *top) |
19d4ac3c | 918 | { |
1758af10 | 919 | if (!top->sort_has_symbols) { |
19d4ac3c ACM |
920 | if (symbol_conf.use_callchain) { |
921 | ui__warning("Selected -g but \"sym\" not present in --sort/-s."); | |
922 | return -EINVAL; | |
923 | } | |
1758af10 | 924 | } else if (!top->dont_use_callchains && callchain_param.mode != CHAIN_NONE) { |
19d4ac3c ACM |
925 | if (callchain_register_param(&callchain_param) < 0) { |
926 | ui__warning("Can't register callchain params.\n"); | |
927 | return -EINVAL; | |
928 | } | |
929 | } | |
930 | ||
931 | return 0; | |
932 | } | |
933 | ||
1758af10 | 934 | static int __cmd_top(struct perf_top *top) |
716c69fe IM |
935 | { |
936 | pthread_t thread; | |
19d4ac3c | 937 | int ret; |
d8f66248 | 938 | /* |
b3165f41 ACM |
939 | * FIXME: perf_session__new should allow passing a O_MMAP, so that all this |
940 | * mmap reading, etc is encapsulated in it. Use O_WRONLY for now. | |
d8f66248 | 941 | */ |
1758af10 ACM |
942 | top->session = perf_session__new(NULL, O_WRONLY, false, false, NULL); |
943 | if (top->session == NULL) | |
b3165f41 | 944 | return -ENOMEM; |
07800601 | 945 | |
1758af10 | 946 | ret = perf_top__setup_sample_type(top); |
19d4ac3c ACM |
947 | if (ret) |
948 | goto out_delete; | |
949 | ||
1758af10 ACM |
950 | if (top->target_tid != -1) |
951 | perf_event__synthesize_thread_map(&top->tool, top->evlist->threads, | |
743eb868 | 952 | perf_event__process, |
1758af10 | 953 | &top->session->host_machine); |
5b2bb75a | 954 | else |
1758af10 ACM |
955 | perf_event__synthesize_threads(&top->tool, perf_event__process, |
956 | &top->session->host_machine); | |
957 | perf_top__start_counters(top); | |
958 | top->session->evlist = top->evlist; | |
959 | perf_session__update_sample_type(top->session); | |
07800601 | 960 | |
2f01190a | 961 | /* Wait for a minimal set of events before starting the snapshot */ |
1758af10 | 962 | poll(top->evlist->pollfd, top->evlist->nr_fds, 100); |
2f01190a | 963 | |
1758af10 | 964 | perf_top__mmap_read(top); |
2f01190a | 965 | |
c0443df1 | 966 | if (pthread_create(&thread, NULL, (use_browser > 0 ? display_thread_tui : |
1758af10 | 967 | display_thread), top)) { |
07800601 IM |
968 | printf("Could not create display thread.\n"); |
969 | exit(-1); | |
970 | } | |
971 | ||
1758af10 | 972 | if (top->realtime_prio) { |
07800601 IM |
973 | struct sched_param param; |
974 | ||
1758af10 | 975 | param.sched_priority = top->realtime_prio; |
07800601 IM |
976 | if (sched_setscheduler(0, SCHED_FIFO, ¶m)) { |
977 | printf("Could not set realtime priority.\n"); | |
978 | exit(-1); | |
979 | } | |
980 | } | |
981 | ||
982 | while (1) { | |
1758af10 | 983 | u64 hits = top->samples; |
07800601 | 984 | |
1758af10 | 985 | perf_top__mmap_read(top); |
07800601 | 986 | |
1758af10 ACM |
987 | if (hits == top->samples) |
988 | ret = poll(top->evlist->pollfd, top->evlist->nr_fds, 100); | |
07800601 IM |
989 | } |
990 | ||
19d4ac3c | 991 | out_delete: |
1758af10 ACM |
992 | perf_session__delete(top->session); |
993 | top->session = NULL; | |
19d4ac3c ACM |
994 | |
995 | return 0; | |
996 | } | |
997 | ||
998 | static int | |
1758af10 | 999 | parse_callchain_opt(const struct option *opt, const char *arg, int unset) |
19d4ac3c | 1000 | { |
1758af10 | 1001 | struct perf_top *top = (struct perf_top *)opt->value; |
19d4ac3c ACM |
1002 | char *tok, *tok2; |
1003 | char *endptr; | |
1004 | ||
1005 | /* | |
1006 | * --no-call-graph | |
1007 | */ | |
1008 | if (unset) { | |
1758af10 | 1009 | top->dont_use_callchains = true; |
19d4ac3c ACM |
1010 | return 0; |
1011 | } | |
1012 | ||
1013 | symbol_conf.use_callchain = true; | |
1014 | ||
1015 | if (!arg) | |
1016 | return 0; | |
1017 | ||
1018 | tok = strtok((char *)arg, ","); | |
1019 | if (!tok) | |
1020 | return -1; | |
1021 | ||
1022 | /* get the output mode */ | |
1023 | if (!strncmp(tok, "graph", strlen(arg))) | |
1024 | callchain_param.mode = CHAIN_GRAPH_ABS; | |
1025 | ||
1026 | else if (!strncmp(tok, "flat", strlen(arg))) | |
1027 | callchain_param.mode = CHAIN_FLAT; | |
1028 | ||
1029 | else if (!strncmp(tok, "fractal", strlen(arg))) | |
1030 | callchain_param.mode = CHAIN_GRAPH_REL; | |
1031 | ||
1032 | else if (!strncmp(tok, "none", strlen(arg))) { | |
1033 | callchain_param.mode = CHAIN_NONE; | |
1034 | symbol_conf.use_callchain = false; | |
1035 | ||
1036 | return 0; | |
1037 | } | |
1038 | ||
1039 | else | |
1040 | return -1; | |
1041 | ||
1042 | /* get the min percentage */ | |
1043 | tok = strtok(NULL, ","); | |
1044 | if (!tok) | |
1045 | goto setup; | |
1046 | ||
1047 | callchain_param.min_percent = strtod(tok, &endptr); | |
1048 | if (tok == endptr) | |
1049 | return -1; | |
1050 | ||
1051 | /* get the print limit */ | |
1052 | tok2 = strtok(NULL, ","); | |
1053 | if (!tok2) | |
1054 | goto setup; | |
1055 | ||
1056 | if (tok2[0] != 'c') { | |
1057 | callchain_param.print_limit = strtod(tok2, &endptr); | |
1058 | tok2 = strtok(NULL, ","); | |
1059 | if (!tok2) | |
1060 | goto setup; | |
1061 | } | |
1062 | ||
1063 | /* get the call chain order */ | |
1064 | if (!strcmp(tok2, "caller")) | |
1065 | callchain_param.order = ORDER_CALLER; | |
1066 | else if (!strcmp(tok2, "callee")) | |
1067 | callchain_param.order = ORDER_CALLEE; | |
1068 | else | |
1069 | return -1; | |
1070 | setup: | |
1071 | if (callchain_register_param(&callchain_param) < 0) { | |
1072 | fprintf(stderr, "Can't register callchain params\n"); | |
1073 | return -1; | |
1074 | } | |
07800601 IM |
1075 | return 0; |
1076 | } | |
b456bae0 IM |
1077 | |
1078 | static const char * const top_usage[] = { | |
1079 | "perf top [<options>]", | |
1080 | NULL | |
1081 | }; | |
1082 | ||
1758af10 ACM |
1083 | int cmd_top(int argc, const char **argv, const char *prefix __used) |
1084 | { | |
1085 | struct perf_evsel *pos; | |
1086 | int status = -ENOMEM; | |
1087 | struct perf_top top = { | |
1088 | .count_filter = 5, | |
1089 | .delay_secs = 2, | |
1090 | .target_pid = -1, | |
1091 | .target_tid = -1, | |
1092 | .freq = 1000, /* 1 KHz */ | |
1093 | .sample_id_all_avail = true, | |
1094 | .mmap_pages = 128, | |
1095 | .sym_pcnt_filter = 5, | |
1096 | }; | |
1097 | char callchain_default_opt[] = "fractal,0.5,callee"; | |
1098 | const struct option options[] = { | |
8c3e10eb | 1099 | OPT_CALLBACK('e', "event", &top.evlist, "event", |
86847b62 | 1100 | "event selector. use 'perf list' to list available events", |
f120f9d5 | 1101 | parse_events_option), |
1758af10 | 1102 | OPT_INTEGER('c', "count", &top.default_interval, |
b456bae0 | 1103 | "event period to sample"), |
8c3e10eb | 1104 | OPT_INTEGER('p', "pid", &top.target_pid, |
d6d901c2 | 1105 | "profile events on existing process id"), |
8c3e10eb | 1106 | OPT_INTEGER('t', "tid", &top.target_tid, |
d6d901c2 | 1107 | "profile events on existing thread id"), |
1758af10 | 1108 | OPT_BOOLEAN('a', "all-cpus", &top.system_wide, |
b456bae0 | 1109 | "system-wide collection from all CPUs"), |
8c3e10eb | 1110 | OPT_STRING('C', "cpu", &top.cpu_list, "cpu", |
c45c6ea2 | 1111 | "list of cpus to monitor"), |
b32d133a ACM |
1112 | OPT_STRING('k', "vmlinux", &symbol_conf.vmlinux_name, |
1113 | "file", "vmlinux pathname"), | |
8c3e10eb | 1114 | OPT_BOOLEAN('K', "hide_kernel_symbols", &top.hide_kernel_symbols, |
8ffcda17 | 1115 | "hide kernel symbols"), |
1758af10 ACM |
1116 | OPT_UINTEGER('m', "mmap-pages", &top.mmap_pages, "number of mmap data pages"), |
1117 | OPT_INTEGER('r', "realtime", &top.realtime_prio, | |
b456bae0 | 1118 | "collect data with this RT SCHED_FIFO priority"), |
8c3e10eb | 1119 | OPT_INTEGER('d', "delay", &top.delay_secs, |
b456bae0 | 1120 | "number of seconds to delay between refreshes"), |
1758af10 | 1121 | OPT_BOOLEAN('D', "dump-symtab", &top.dump_symtab, |
b456bae0 | 1122 | "dump the symbol table used for profiling"), |
8c3e10eb | 1123 | OPT_INTEGER('f', "count-filter", &top.count_filter, |
b456bae0 | 1124 | "only display functions with more events than this"), |
1758af10 | 1125 | OPT_BOOLEAN('g', "group", &top.group, |
b456bae0 | 1126 | "put the counters into a counter group"), |
1758af10 | 1127 | OPT_BOOLEAN('i', "inherit", &top.inherit, |
0fdc7e67 | 1128 | "child tasks inherit counters"), |
1758af10 | 1129 | OPT_STRING(0, "sym-annotate", &top.sym_filter, "symbol name", |
6cff0e8d | 1130 | "symbol to annotate"), |
8c3e10eb | 1131 | OPT_BOOLEAN('z', "zero", &top.zero, |
b456bae0 | 1132 | "zero history across updates"), |
8c3e10eb | 1133 | OPT_INTEGER('F', "freq", &top.freq, |
b456bae0 | 1134 | "profile at this frequency"), |
8c3e10eb | 1135 | OPT_INTEGER('E', "entries", &top.print_entries, |
6e53cdf1 | 1136 | "display this many functions"), |
8c3e10eb | 1137 | OPT_BOOLEAN('U', "hide_user_symbols", &top.hide_user_symbols, |
8ffcda17 | 1138 | "hide user symbols"), |
1758af10 ACM |
1139 | OPT_BOOLEAN(0, "tui", &top.use_tui, "Use the TUI interface"), |
1140 | OPT_BOOLEAN(0, "stdio", &top.use_stdio, "Use the stdio interface"), | |
c0555642 | 1141 | OPT_INCR('v', "verbose", &verbose, |
3da297a6 | 1142 | "be more verbose (show counter open errors, etc)"), |
ab81f3fd ACM |
1143 | OPT_STRING('s', "sort", &sort_order, "key[,key2...]", |
1144 | "sort by key(s): pid, comm, dso, symbol, parent"), | |
1145 | OPT_BOOLEAN('n', "show-nr-samples", &symbol_conf.show_nr_samples, | |
1146 | "Show a column with the number of samples"), | |
1758af10 | 1147 | OPT_CALLBACK_DEFAULT('G', "call-graph", &top, "output_type,min_percent, call_order", |
19d4ac3c ACM |
1148 | "Display callchains using output_type (graph, flat, fractal, or none), min percent threshold and callchain order. " |
1149 | "Default: fractal,0.5,callee", &parse_callchain_opt, | |
1150 | callchain_default_opt), | |
ab81f3fd ACM |
1151 | OPT_BOOLEAN(0, "show-total-period", &symbol_conf.show_total_period, |
1152 | "Show a column with the sum of periods"), | |
1153 | OPT_STRING(0, "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", | |
1154 | "only consider symbols in these dsos"), | |
1155 | OPT_STRING(0, "comms", &symbol_conf.comm_list_str, "comm[,comm...]", | |
1156 | "only consider symbols in these comms"), | |
1157 | OPT_STRING(0, "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", | |
1158 | "only consider these symbols"), | |
64c6f0c7 ACM |
1159 | OPT_BOOLEAN(0, "source", &symbol_conf.annotate_src, |
1160 | "Interleave source code with assembly code (default)"), | |
1161 | OPT_BOOLEAN(0, "asm-raw", &symbol_conf.annotate_asm_raw, | |
1162 | "Display raw encoding of assembly instructions (default)"), | |
1163 | OPT_STRING('M', "disassembler-style", &disassembler_style, "disassembler style", | |
1164 | "Specify disassembler style (e.g. -M intel for intel syntax)"), | |
b456bae0 | 1165 | OPT_END() |
1758af10 | 1166 | }; |
b456bae0 | 1167 | |
8c3e10eb ACM |
1168 | top.evlist = perf_evlist__new(NULL, NULL); |
1169 | if (top.evlist == NULL) | |
361c99a6 ACM |
1170 | return -ENOMEM; |
1171 | ||
ab81f3fd | 1172 | symbol_conf.exclude_other = false; |
b456bae0 | 1173 | |
b456bae0 IM |
1174 | argc = parse_options(argc, argv, options, top_usage, 0); |
1175 | if (argc) | |
1176 | usage_with_options(top_usage, options); | |
1177 | ||
ab81f3fd ACM |
1178 | if (sort_order == default_sort_order) |
1179 | sort_order = "dso,symbol"; | |
1180 | ||
1181 | setup_sorting(top_usage, options); | |
1182 | ||
1758af10 | 1183 | if (top.use_stdio) |
c0443df1 | 1184 | use_browser = 0; |
1758af10 | 1185 | else if (top.use_tui) |
c0443df1 ACM |
1186 | use_browser = 1; |
1187 | ||
1188 | setup_browser(false); | |
1189 | ||
b456bae0 | 1190 | /* CPU and PID are mutually exclusive */ |
8c3e10eb | 1191 | if (top.target_tid > 0 && top.cpu_list) { |
b456bae0 IM |
1192 | printf("WARNING: PID switch overriding CPU\n"); |
1193 | sleep(1); | |
8c3e10eb | 1194 | top.cpu_list = NULL; |
b456bae0 IM |
1195 | } |
1196 | ||
8c3e10eb ACM |
1197 | if (top.target_pid != -1) |
1198 | top.target_tid = top.target_pid; | |
7e2ed097 | 1199 | |
8c3e10eb ACM |
1200 | if (perf_evlist__create_maps(top.evlist, top.target_pid, |
1201 | top.target_tid, top.cpu_list) < 0) | |
7e2ed097 ACM |
1202 | usage_with_options(top_usage, options); |
1203 | ||
8c3e10eb ACM |
1204 | if (!top.evlist->nr_entries && |
1205 | perf_evlist__add_default(top.evlist) < 0) { | |
69aad6f1 ACM |
1206 | pr_err("Not enough memory for event selector list\n"); |
1207 | return -ENOMEM; | |
1208 | } | |
5a8e5a30 | 1209 | |
d04b35f8 ACM |
1210 | symbol_conf.nr_events = top.evlist->nr_entries; |
1211 | ||
8c3e10eb ACM |
1212 | if (top.delay_secs < 1) |
1213 | top.delay_secs = 1; | |
2f335a02 | 1214 | |
7e4ff9e3 MG |
1215 | /* |
1216 | * User specified count overrides default frequency. | |
1217 | */ | |
1758af10 | 1218 | if (top.default_interval) |
8c3e10eb ACM |
1219 | top.freq = 0; |
1220 | else if (top.freq) { | |
1758af10 | 1221 | top.default_interval = top.freq; |
7e4ff9e3 MG |
1222 | } else { |
1223 | fprintf(stderr, "frequency and count are zero, aborting\n"); | |
1224 | exit(EXIT_FAILURE); | |
1225 | } | |
1226 | ||
8c3e10eb ACM |
1227 | list_for_each_entry(pos, &top.evlist->entries, node) { |
1228 | if (perf_evsel__alloc_fd(pos, top.evlist->cpus->nr, | |
1229 | top.evlist->threads->nr) < 0) | |
69aad6f1 ACM |
1230 | goto out_free_fd; |
1231 | /* | |
1232 | * Fill in the ones not specifically initialized via -c: | |
1233 | */ | |
1234 | if (pos->attr.sample_period) | |
1235 | continue; | |
1236 | ||
1758af10 | 1237 | pos->attr.sample_period = top.default_interval; |
69aad6f1 ACM |
1238 | } |
1239 | ||
8c3e10eb ACM |
1240 | if (perf_evlist__alloc_pollfd(top.evlist) < 0 || |
1241 | perf_evlist__alloc_mmap(top.evlist) < 0) | |
5c581041 ACM |
1242 | goto out_free_fd; |
1243 | ||
8c3e10eb | 1244 | top.sym_evsel = list_entry(top.evlist->entries.next, struct perf_evsel, node); |
cc841580 | 1245 | |
ab81f3fd | 1246 | symbol_conf.priv_size = sizeof(struct annotation); |
69aad6f1 ACM |
1247 | |
1248 | symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL); | |
1249 | if (symbol__init() < 0) | |
1250 | return -1; | |
1251 | ||
ab81f3fd ACM |
1252 | sort_entry__setup_elide(&sort_dso, symbol_conf.dso_list, "dso", stdout); |
1253 | sort_entry__setup_elide(&sort_comm, symbol_conf.comm_list, "comm", stdout); | |
1254 | sort_entry__setup_elide(&sort_sym, symbol_conf.sym_list, "symbol", stdout); | |
1255 | ||
19d4ac3c ACM |
1256 | /* |
1257 | * Avoid annotation data structures overhead when symbols aren't on the | |
1258 | * sort list. | |
1259 | */ | |
1758af10 | 1260 | top.sort_has_symbols = sort_sym.list.next != NULL; |
19d4ac3c | 1261 | |
1758af10 | 1262 | get_term_dimensions(&top.winsize); |
8c3e10eb | 1263 | if (top.print_entries == 0) { |
1758af10 ACM |
1264 | struct sigaction act = { |
1265 | .sa_sigaction = perf_top__sig_winch, | |
1266 | .sa_flags = SA_SIGINFO, | |
1267 | }; | |
1268 | perf_top__update_print_entries(&top); | |
1269 | sigaction(SIGWINCH, &act, NULL); | |
3b6ed988 ACM |
1270 | } |
1271 | ||
1758af10 | 1272 | status = __cmd_top(&top); |
69aad6f1 | 1273 | out_free_fd: |
8c3e10eb | 1274 | perf_evlist__delete(top.evlist); |
69aad6f1 ACM |
1275 | |
1276 | return status; | |
b456bae0 | 1277 | } |